WASHINGTON, Oct. 24 â€” The Bush administration is closely monitoring a private lawsuit accusing members of the Saudi royal family of ties to Al Qaeda, and may move in a federal court here to dismiss or delay the suit, which was brought by relatives of Sept. 11 victims, according to administration officials.

Government laywers, the officials said, are trying to determine whether the case threatens to damage Saudi-American relations, which would give them reason to block the suit. The suit seeks $1 trillion in damages and is being pursued here by nearly 3,000 of the relatives